Recombinant Human IL12A

• Cat.No.: IL12A-219H

Specification

• Species: Human
• Source: Sf21 Cells
• Tag: Non
• Description: Interleukin 12 (IL-12, NK cell stimulatory factor, cytotoxic lymphocyte maturation factor) is a heterodimeric cytokine that is naturally produced by dendritic cells , macrophages and human B-lymphoblastoid cells (NC-37) in response to antigenic stimulation. IL-12 is involved in the differentiation of naive T cells into Th1 cells, which is important in resistance against pathogens. It is known as a T cell stimulating factor, which can stimulate the growth and function of T cells. It stimulates the production of IFN-γ and TNF-α from T and natural killer (NK) cells, and reduces IL-4 mediated suppression of IFN-γ. IL-12 also has anti-angiogenic activity, which can block the formation of new blood vessels. IL-12 binds to the IL-12 receptor and upon binding, IL-12R-β2 becomes tyrosine phosphorylated and provides binding sites for kinases, Tyk2 and Jak2. These are important in activating critical transcription factor proteins such as STAT4 which are implicated in IL-12 signaling in T cells and NK cells. IL-12 contributes to the antimycobacterial immune response by enhancing production of interferon-gamma, facilitating development of Th1 cells and augmenting cytotoxicity of antigen-specific T cells and natural killer cells.
• Molecular Weight: The predicted molecular weight of Recombinant Human IL-12 is Mr 75 kDa.
• State Of Matter: Lyophilized.
• Formulation: This recombinant protein solution was 0.2 µm filtered and formulated in modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 with no calcium, magnesium, or preservatives present.
• Purity: > 97% by SDS Page and analyzed by silver stain.
• Endotoxin: < 1.0 EU/µg as determined by the LAL method.
• Biological Activity: The biological activity of Human Interleukin-12 is determined by the stimulation of IFN-gamma from NK cells co-stimulated with IL-18. The expected ED50 for this effect is <1.0 ng/ml, corresponding to a specific activity of >1 x 106 units/mg.
• Storage And Stability: This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution, this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.

Gene Information

• Gene Name: IL12A interleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocyte maturation factor 1, p35) [ Homo sapiens ]
• Synonyms: NKSF1; CTL maturation factor (TCMF); Cytotoxic lymphocyte maturation factor 35 kDa subunit (CLMF p35); TSF; Edodekin-alpha; IL-12 p35; SGT2; FLJ39002; CLMF; IL-12A; NFSK; P35; Cytotoxic lymphocyte maturation factor 35 kDa subunit; IL-12 subunit p35; IL-12, subunit p35; NF cell stimulatory factor chain 1; cytotoxic lymphocyte maturation factor 1, p35; interleukin 12, p35; interleukin 12A; interleukin 12A (natural killer cell stimulatory factor 1,cytotoxic lymphocytematuration factor 1, p35); interleukin-12 alpha chain; natural killer cell stimulatory factor 1, 35 kD subunit 2; IL12A
• Gene ID: 3592
• mRNA Refseq: NM_000822
• Protein Refseq: NP_000873
• UniProt ID: P29459
• Chromosome Location: 3q25.33-q26
• MIM: 161560
• Pathway: Allograft rejection; Cytokine-cytokine receptor interaction; Jak-STAT signaling pathway; RIG-I-like receptor signaling pathway; Toll-like receptor signaling pathway; Type I diabetes mellitus
• Function: contributes_to cytokine activity; contributes_to growth factor activity; interleukin-12 beta subunit binding; interleukin-12 receptor binding; interleukin-27 binding; protein binding; protein heterodimerization activity